Finding the Fourth Proportional to 98,462.27, 135,876.74 and 56,020.70
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Solution
The fourth proportional to 98,462.27, 135,876.74 and 56,020.70 is: 77,307.88
Step by Step Solution
- Step 1: Write the proportion equation
98,462.27 : 135,876.74 = 56,020.70 : x - Step 2: Convert to fraction form
98,462.27/135,876.74 = 56,020.70/x - Step 3: Cross multiply
98,462.27x = 135,876.74 × 56,020.70 - Step 4: Simplify right side
98,462.27x = 7,611,909,129.03 - Step 5: Solve for x
x = 7,611,909,129.03/98,462.27 - Step 6: Final answer
x = 77,307.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.